https://doi.org/10.4169/college.math.j.45.1.011 https://www.jstor.org/stable/10.4169/college.math.j.45.1.011 Summary In textbooks, the familiar sine and cosine ...

This is a preview. Log in through your library . Journal Information The Mathematical Gazette is the original journal of the Mathematical Association and it is now over a century old. Its readership ...

Trigonometry is the branch of mathematics that explains the relationship between sides and angles of a triangle. In a right angled triangle the three sides are perpendicular, base and hypotenuse, as ...